Space-time reference with an optical link

Space-time reference with an optical link

We describe a concept for realizing a high performance space-time reference using a stable atomic clock in a precisely defined orbit and synchronizing the orbiting clock to high-accuracy atomic clocks on the ground. The synchronization would be accomplished using a two-way lasercom link between ground and space. The basic approach is to take advantage of the highestperformance cold-atom atomic ...

Performance Analysis of a Free Space Optical Link with Space Time Block Code

The Identity of Moses in Surah Al-Qasas with Reference to Time and Space

The question of identity in a narrative text is one of the most influential questions that need further study. The variations in the factors that may affect the concept of identity add to the complexity of the narrative text. The study aims at analyzing the main phases, stages, themes and events of Moses’ life story as part of the narrative discourse. The effects of time and place on the main e...

Performance Analysis of a MIMO Optical Wireless link with Space

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Development of Free Space Optical Link for Broadband Data Communication

To transfer high speed data streams, a line of sight (LOS) broadband free space optical (FSO) communication link has been designed between two private local LANs located at an aerial distance of about 2 km. A laser diode (LD) – avalanche photodiode (APD) combination operating at 1550nm is used to work as an optical trans-receiver system while an Erbium-doped optical amplifier (EDFA) is used to ...